如何从Firebase实时数据库中检索存储在列表中的随机密钥？下面的编码是js链接到我的另一个HTML .
// above is the firebase setting
firebase.initializeApp(config);
var database = firebase.database();
var temp1 = FirebaseDatabase.getInstance().getReference().child("sensor").child("dht");
temp1.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
String randomkey=dataSnapshot.getkey();
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(FirebaseError firebaseError) {
}
});